Posture support undergarment



FIG. 1 is a front view of a posture support undergarment according to a first embodiment of the design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof. The left side view is a mirror image of the right side;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a rear perspective view thereof;

FIG. 6 is a front view thereof without the environmental structure (of the human body);

FIG. 7 is a flat view of the design;

FIG. 8 is a front view of a posture support undergarment according to a second embodiment of the design, without sleeves;

FIG. 9 is a rear view thereof;

FIG. 10 is a front view thereof without the environmental structure (of the human body); FIG. 11 is a flat view of the design; and,

FIG. 12 is a front view of a posture support undergarment shown in FIG. 1 in an alternate configuration of use;

Broken lines are for the purpose of illustrating portions of the environmental structure or alternate environment of use and form no part of the claimed design. 

CLAIM The ornamental design for a posture support undergarment, as shown and described. 